Lock nut



AAAAAAAA ER Anton ]Veuau r WEN Patenized Aug. 10, 192.6.

PATENT OFFICE.

ANTON NEUBAEIR, OF NORRISTOWN', PENNSYLVANIA.

LOCK NUT.

Application fi1ed. J'anuary This invention relates to improve2nent-s in nut loclzs the geneml object 01 the invontion being to provicle a Simple ancl efl"cctive lock for holding a nut against turning movement 011 a holt.

Another object of the invention is to so form the parcs that ehe lovking rnember Will not interfere With the placing of the nut on the holt, anal its removal iherei'ronn, when the locking 1ne1nber is in unlocking position.

A still further object of the invention .is to provicle spring means for holding the locking membep in its locl;ing ancl unlock ing positions.

This invention also consisis in cerl;ain othe1: features of construction ancl in Ehe com-loination ancl arrm1gexnent of tne several parts, t0 be hereinafter fully clesc ribsal, illustrated in the accompanying clra:wings and specifically pointecl out in the appende l claims.

In clescribing my invention in cletail, referenoe Will be liacl to the accompanying clrawings wherein like characters denote like o1 correspomling parts throughout the sov eral views, and in which Figure 1 is a VieW, partly in section, showing the= invention in use.

Figure 2 is an encl view showing a nut lockecl t0 a holt.

Figure 3 is an enlargecl sectional cletail view showing a nut lockecl to aholt.

Fignre 1 is a si1nil2u view but showing the nut removecl and the locking me1nber in inoperative position.

Figure 5 is a perspective view of the lok ing member.

In these Views, 1 inclicates a holt ancl 9- a nut, ancl in carx*ying out my invontion I form aslot 3 in the threacled end of the. holt ancl pivot in said slot a locking 1ever 1 by means of the pin 5 which is passecl through l10ls formecl in the sl0tted en l of the holt und in the lover. A portion of the holt is flattenecl, as at 6 to receive the pin anal t0 prevent the end of ehe pin fro1n interfering with the nut. This lever is so arranged that when in vertical position it Will not interfere with alle placing of a nut on the holt, ancl Ehen, when the nut has been screwecl home, the lever can loeswung to a horizontal position so that it Will engage any one of anumber 0f notches 7 formecl in the nut und thus the nut Will be lockecl 31 1925. Serial N0. 6,038.

t0 the holt by the lever. The lever is hold in either its vertical 01' horizontal positmn by 1neans of a hairpin-shaped spring 8, se-

' curecl in the bottom of the slot 3, loy a, pin

9, and which has o ne limb thereof adaptecl 110 engage the recesses 10 ancl 10'0ne of which is formed in the bottom edge of the leve'r und the other' in the outer side edge thereof. Thus, when the lever is in vertical position, the spring will engage the recess 10 ancl hold the lever in this position and when the lover is in horizontal OI locking position the spring Will engage the recess 10 sind hold the lever in tl1is position.

Froin the foregoing it Will be seen that 1 hzwe providecl a simple and efl'ective clevice for locking a nut to a holt, the clevice not interfering with the placing of the nut 011 the holt 01 its removal therefrom. The locking lever can be easily und quickly movecl frorn its nnlocking position to its locking position ancl Vice Versa ancl the spring Will act to prevent it from being accidentally 1novecl fro1n one position to another.

VVhen the device is usecl in places where the paits are exposecl t0 the elements, such as 011 railroacls and Ehe like, the parcs shoul cl be formecl of nonrusting material so that there will be 110 danger of the= lever rusting to the holt ancl nut azncl thus prevencecl from being 1novecl to unlocking position. A sufli cient part 0f the lever Will project beyoncl the nut 130 enable the lever t0 be movecl to unlocking position loy being grasped by the fingers 0r engaged by zu tool. By forming the nut with a plurality of no-tches 7 the nut can be screwecl home upon t-he work piece 01" a washer, as shown in Figure 1, and then the lever swung into engagement with one of the no-tches to prevent turning movenient of the nut.

lt i's thought from the foregoing description that the aclvantages 2Lnd novel features.

of my invent-ion Will be reaclily apparent.

I clesire it to be understoocl that I may make changes in the construction ancl in the combination and arrangement of the sovoral parts, provided that such changes fall within the sc0pe 0f the appencled claim.

WVhat I claim is:

In combination with a b0lfi, and il;s nut, the holt having a slot in its threacled end, a flattenecl portion on opposite sides of the holt at right angles tothe slot, said nut having zu plurality of notches therein, a locking lever having oneand disposed within the slou in the holt, a pin extending through the holt and 1ever With its ends terminating at the flattened portions, the, inner end and one side edge 0f said locking lever being formed with arcuate recesses and a hair pin shaped spring hzwing one of its leg portions bearing against 0ne of the inner enc1s of the slot in the bolt and the other end formed with an arcuate portion for engagemant with either one of the= recesses in the locking 1ever.

In testimony whereof I afi3x my signature.

ANTON NEUBAUER. 

